MC34119 Motorola, MC34119 Datasheet
MC34119
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MC34119 Summary of contents
Page 1
... Low Power Audio Amplifier The MC34119 is a low power audio amplifier intergrated circuit intended (primarily) for telephone applications, such as in speakerphones. It provides differential speaker outputs to maximize output swing at low supply voltages (2.0 V minimum). Coupling capacitors to the speaker are not required. Open loop gain is 80 dB, and the closed loop gain is set with two external resistors ...
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... FC1 ( 6 FC2 ( 6.0 V) CHIP DISABLE (Pin 1) Input Voltage Low High Input Resistance ( POWER SUPPLY Power Supply Current ( 2.0 V) NOTE: Currents into a pin are positive, currents out of a pin are negative. 2 MC34119 Symbol Min Max Unit V CC +2.0 +16 Vdc Vdc R L 8.0 – ...
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... CC – 0.7 V)/2. TYPICAL TEMPERATURE PERFORMANCE Function Input Bias Current (@ Total Harmonic Distortion ( 6 out = 125 mW 1.0 kHz) Power Supply Current ( 3 3 2.0 V) MOTOROLA ANALOG IC DEVICE DATA MC34119 PIN FUNCTION DESCRIPTION Description (V CC – 0.7 V)/2. (–20 C < < +70 C) Typical Change 40 +0.003 –2.5 –0.03 ...
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... The Chip Disable (Pin 1) can be used to power down the IC to conserve power, or for muting, or both. When at a Logic “0” 0.8 V), the MC34119 is enabled for normal operation. When Pin Logic “1” (2 V), the IC is disabled. If Pin 1 is open, that is equivalent to a Logic “ ...
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... The center flat portion of each curve is defined by the maximum output current capability of the MC34119. The right (descending) portion of each curve is defined by the maximum internal power dissipation of the higher ambient temperatures, the maximum load power must be reduced according to the above equations ...
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... Figure 6. Power Supply Rejection versus Frequency ( 200 1 FREQUENCY (Hz) Figure 8. Device Dissipation, 8.0 1000 800 600 400 200 LOAD POWER (mW) 6 MC34119 Figure 5. Power Supply Rejection versus Frequency 200 Figure 7. Power Supply Rejection versus Frequency 200 Load Figure 9 ...
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... Figure 14. Maximum Allowable Load Power 500 400 300 200 8.0 100 C–Derate at higher temperatures 0 0 2.0 4.0 6.0 8 SUPPLY VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA MC34119 Figure 11. Distortion versus Power Load 8 3 6.0 4.0 2.0 0 400 500 0 100 Figure 13. Distortion versus Power ( 3.0 kHz, AVD = 12 dB ...
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... Figure 21. Audio Amplifier with High Input Impedance 0.1 3 0.1 Input 5 Differential Gain = Frequency Response: See Figure 3 [ Input Impedance 125 k PSRR 50 dB MOTOROLA ANALOG IC DEVICE DATA 20 s/DIV 2 3.0 V VCC 6 120 160 200 I LOAD , LOAD CURRENT (mA – Speaker + 4 – 8 125 Bias 50 k Disable Circuit MC34119 7 Gnd ...
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... MOTOROLA ANALOG IC DEVICE DATA MC34119 Figure 23. Frequency Response of Figure Speaker 16 8 8.0 1 Disable 0 100 Figure 25. Frequency Response of Figure Speaker 8 100 1 Disable Figure 26. Split Supply Operation (+1 +8 – Speaker + 4 – 8 125 Bias Circuit MC34119 (–1 –8 1 FREQUENCY (Hz) 1 FREQUENCY (Hz) 4700 20 k Chip Disable ...
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... T M –A– –B– –T– SEATING PLANE D 8X 0.25 (0.010 MC34119 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN 2. PACKAGE CONTOUR OPTIONAL (ROUND OR 3. DIMENSIONING AND TOLERANCING PER ANSI SUFFIX PLASTIC PACKAGE CASE 751– ...
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... L PIN 1 IDENT 0.15 (0.006 –V– C 0.10 (0.004) G –T– D SEATING PLANE MOTOROLA ANALOG IC DEVICE DATA MC34119 OUTLINE DIMENSIONS DTB SUFFIX PLASTIC PACKAGE CASE 948J–01 (TSSOP) ISSUE Ç Ç Ç Ç Ç Ç É É Ç Ç Ç É É ...
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... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *MC34119/D* MOTOROLA ANALOG IC DEVICE DATA MC34119/D ...